<template>
  <div class="icons">
    <swiper :options="swiperOption" >
      <swiper-slide v-for="(page, index) of pages" :key="index">
      <div class="icon" v-for="item of page" :key="item.id">
        <div class="icon-img">
        <img class="icon-img-content" :src="item.imgUrl"/>
        </div>
        <p class="icon-desc">{{item.desc}}</p>
      </div>
      </swiper-slide>
      <!-- Optional controls -->
      <div class="swiper-pagination"  slot="pagination"></div>
    </swiper>
  </div>
</template>

<script>
export default {
  name: 'HomeIcons',
  props: {
    list: Array
  },
  data () {
    return {
      swiperOption: {
        pagination: {el: '.swiper-pagination'},
        loop: true,
        autoplay: false
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" scoped>
    @import '~styles/variables.styl'
    @import '~styles/mixins.styl'
    .icons >>> .swiper-container
      overflow: hidden;
      height 0;
      padding-bottom 50%;
    .icons
      margin-top : 0.1rem
      .icon
        float: left;
        width: 25%;
        height :0;
        padding-bottom 25%;
        position :relative;
        .icon-img
          overflow :hidden;
          position absolute;
          top:0;
          left :0;
          right :0;
          bottom :0;
          padding 0.1 rem;
          box-sizing :border-box;
          .icon-img-content
            height :75%;
            display :block;
            margin :0 auto;
        .icon-desc
          position absolute;
          left :0;
          right :0;
          bottom :0;
          line-height :0.44rem;
          height: 0.44rem;
          text-align center;
          color: $darkColor;
          ellipsis()
</style>
